{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-53205", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.391Z", "datePublished": "2026-06-25T08:39:12.268Z", "dateUpdated": "2026-08-05T12:34:08.243Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:34:08.243Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Add bounds checks for firmware log indices\n\nAdd validation that read and write indices in the firmware log buffer\nare within valid bounds (< data_size) before using them. If\nout-of-bounds indices are encountered (from firmware), clamp them to\nsafe values instead of proceeding with invalid offsets.\n\nThis prevents potential out-of-bounds buffer access when firmware\nsupplies invalid log indices." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable code is reached through local kernel interfaces for the Intel NPU/ivpu device, including debugfs log reads and recovery/coredump paths after local job submission. There is no network or adjacent-radio entry point.\nAC:L - No race or difficult timing is required once invalid firmware log indices are present; the log read/recovery path directly consumes them. A local attacker can repeatedly exercise the NPU and trigger log printing or recovery.\nPR:L - The relevant DRM accel ioctls do not require capabilities, and the debugfs fw_log file is created as readable when debugfs is accessible. This is reachable by a local low-privileged user with access to the NPU device/debug interface, not by an unauthenticated remote attacker.\nUI:N - Exploitation does not require a separate victim action. The attacker can invoke the local device/debugfs path directly.\nS:U - The impact is within the local kernel/device driver security authority. It does not cross a VM, IOMMU, or other separate security scope boundary.\nC:H - Unbounded firmware-controlled indices can make the driver read far beyond the firmware log BO and print kernel memory through the log/coredump output path. This is an out-of-bounds read that can disclose high-value kernel memory.\nI:N - The vulnerable path reads bytes and prints them; it does not write out of bounds or provide an evident memory modification primitive. The fix only clamps read offsets.\nA:H - Out-of-bounds reads from a vmapped buffer can fault while walking unmapped memory or consume excessive resources while printing. This can cause a kernel oops/panic or serious denial of service." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/accel/ivpu/ivpu_fw_log.c" ], "versions": [ { "version": "0923a7d55a85179744926b7c11768a81679cc4d4", "lessThan": "5961c703414048f46818be8bbb11075a9a63fb4e", "status": "affected", "versionType": "git" }, { "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4", "lessThan": "8ec70c0dbdf04392a26e03e38798a373934177be", "status": "affected", "versionType": "git" }, { "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4", "lessThan": "535da9ad8420c3b686a642403d4147ff220255fd", "status": "affected", "versionType": "git" }, { "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4", "lessThan": "dd1311bcf0e62f0c515115f46a3813370f4a4bb1", "status": "affected", "versionType": "git" }, { "version": "6.12.30", "lessThan": "6.12.94", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/accel/ivpu/ivpu_fw_log.c" ], "versions": [ { "version": "6.13", "status": "affected" }, { "version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.30", "versionEndExcluding": "6.12.94" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.36" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5961c703414048f46818be8bbb11075a9a63fb4e" }, { "url": "https://git.kernel.org/stable/c/8ec70c0dbdf04392a26e03e38798a373934177be" }, { "url": "https://git.kernel.org/stable/c/535da9ad8420c3b686a642403d4147ff220255fd" }, { "url": "https://git.kernel.org/stable/c/dd1311bcf0e62f0c515115f46a3813370f4a4bb1" } ], "title": "accel/ivpu: Add bounds checks for firmware log indices", "x_generator": { "engine": "bippy-1.2.0" } } } }